The formerly [ once ] barren land has been changed into stretches of fertile fields.
昔日的荒地今天成了良田.
《现代汉英综合大词典》
The farmers have taken strenuous pains to turn the barren land into productive fields.
农民们历尽艰辛把贫瘠之地变成了多产的良田.
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在海拔2100m以上的迎风坡面、土层瘠薄的地段分布有不甚典型的山地苔藓矮林。
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Owing to the rise of the temperature, the land becomes barren and unproductive.
由于气温升高, 土地变得贫瘠而减产.
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